Add linuxbrew install instructions

[zaporter-work]

Description

tested on linux x86_64.

Might as well include instructions so that people get updates.

@abe-winter Is there a reason we didn't include instructions for linuxbrew?

[viambot]

Overall readability score: 54.62 (🟢 +0)

File	Readability
CLI.md	58.42 (🟢 +0.17)

View detailed metrics

🟢 - Shows an increase in readability
🔴 - Shows a decrease in readability

File	Readability	FRE	GF	ARI	CLI	DCRS
CLI.md	58.42	42.51	10.09	14.1	12.24	6.3
	🟢 +0.17	🟢 +0.1	🟢 +0.05	🟢 +0	🟢 +0	🟢 +0.02

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	54.62	46.1	10.88	13.34	11.83	7.77
	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0

View metric targets

Metric	Range	Ideal score
Flesch Reading Ease	100 (very easy read) to 0 (extremely difficult read)	60
Gunning Fog	6 (very easy read) to 17 (extremely difficult read)	8 or less
Auto. Read. Index	6 (very easy read) to 14 (extremely difficult read)	8 or less
Coleman Liau Index	6 (very easy read) to 17 (extremely difficult read)	8 or less
Dale-Chall Readability	4.9 (very easy read) to 9.9 (extremely difficult read)	6.9 or less

[zaporter-work]

@andf-viam

I just threw this pr up to cause discussion. If you are against it, feel free to close.

If we decide to let customers know that it works on linux, might be better to throw these instructions in the tab for Linux x86 rather than creating a new tab.

[zaporter-work]

LGTM!

[viambot]

You can view a rendered version of the docs from this PR at https://docs-test.viam.dev/523029297bb3c74304f527402272c94032697102/public

[andf-viam]

LGTM, thanks!